50.A. “What are you doing now? father asked.

　 B. Father asked her what ________ _________ _________ _________.

49.A. “The sun is much bigger than the earth.” Mother told me .

　 B. Mother told me ________ the sun　 ___________ much bigger than the earth.

48.A. “ What are you doing here in the classroom?” he asked.

　 B. He asked me ___________ _________ __________ _________ __________ in the classroom.

47.A. “Don’t look out of the window, Lin Xiang.” Mr. Wu said angrily.

　 B. Mr. Wu __________ Lin Xiang ___________ __________ look out of the window.

e.g. 　1.“Listen carefully, Jack.” Said the Math teacher.

　　　 = The math teacher ___________ Jack __________ __________ carefully.

2. “What does your feather do?” Mrs. Yang asked .

　　 = Mrs. Yang asked him ___________ _________ father ___________.

此类题目要注意陈述语序和疑问语序间的转换、时态的变化、人称代词的变化、物主代词的变化，以及一些时间、地点甚至指示代词的变化。

Exercises:

45.A. Can you let me know when they will start?

　 B. Could you please tell me __________ __________ ___________?

46A. They piled the snow in one place so that they could make a snowman.

　 B. They piled the snow in one place _________ __________ _______ make a snowman.

e.g.　 Please tell me how I can get to the nearest post office.

　　　 = Could you tell me how to get to the nearest post office?

　 此类题目要求学生明白疑问词与动词不定时连用的含义，构成不定时结构如：

how to…,when to…, what to…, where to…等。还要注意一些含动词不定式的短语，

如：ask sb.(not) to do sth., tell sb. (not) to do sth.等。

Exercises:

43.A. Our teacher told him that he shouldn’t be late the next time.

　 B. Our teacher told him __________ __________ _________ late the next time.

44A. They are thinking of what they should do next.

B. They are thinking of ___________ ________ ____________ next.

42.A. He became an English teacher 15 years ago.

　 B. He ________ ____________ an English __________ 15 years ago.

C. He __________ __________ English for 15 years.

　 D. It ________ ____________ 15 years ____________ he started teaching English 15 years ago.

41.A. I closed the window two minutes ago.

B. The window __________ ___________ ____________ for two minutes.

40.A. It’s about ten minutes since he left the room.

　 B. He ________ the room ten minutes __________.

　　 C. He ________ __________ ___________ ___________ the room for about ten minutes.